Turbine



F. E. KUBE.

TURBINE.

APPLICATION FILED JUNE 28, 1920. 1,394,772. Patented Oct. 25, 1921..

2 SHEETSSHEE'I I.

WITNESSES INVENTOH ATTORNEYS F. E KUBE.

TURB APPLICATION FILEI J J UNE 28, 1920. I 1,394,772. 0t. 1921a T I M E UNITED ST FREDERICK anivnsr KUBE, or ct nron, IOWA.

TURBINE.

Application filed June 28,

T 0 all whom-it may concern:

' Be it known that I, FREDERICK E. KUBE,'a citizen of the United States, and aresident of Clinton, in the county of Clinton and State of Iowa, have invented a newand Improved Turbine, of which the following is a full, clear, and exact description.

This invention relates to improvements in turbines, and more particularly to steam turbines, an object of'the invention being to provide a turbine having an improved con struction of rotor in which the steam 1s admitted axially, then directed radially, and then circumferentially in contact with blades or vanes in a circular series so as to utilize the full kinetic energy of the steam in its passage in order to impart motion to the rotor.

A further object is to provide an improved arrangement of governors and valves for automatically obstructing the passage of steam so as to offer the maximum of resistance to the passage of steam in starting the rotor and to reduce the resistance as the rotor increases in velocity. I I

With these and other objects in view the invention consists in certain novel features of construction, and combinations and arrangements of parts as will be more fully hereinafter described and pointed out in the claims.

In the accompanying drawings- Figure 1 is a view in longitudinal section through the axis of my improved tur-.

bine.

Fig. 2 is a view partly in elevation and The shaft 4 is in reality a pair of trun-V nions, one of said trunnions fixed to or integral with the rotor 6 of the turbine and the other trunnion connected by a head 7 and a series of lugs or pins 8 with the other side of the rotor, and this head 7 and the pins 8 are accommodated in a lateral extension 9 Specification of Letters Patent.

theinlet chamber 10 radial passage '14 which directs the steam Patented ea. 25, 1921. 1920. Serial No. 392,157.

' forming an inlet compartment 10 positioned axially relative to the rotor.

from the casing or stator 2.

. My invention resides primarily in the construction and arrangement of rotor 6, and this rotor is in the form of a disk having a central or axial inlet 13 communicating with and provided with a from the axial inlet 13 to a circumferential steam passage 15 in the rotor.

his passage 15 is shown of circular shape in cross-section and provided witha series of truncated conical shaped blades or vanes 16 fixed in the passage and spaced any desired distance apart. The passage 15 has its entrance end in communication with the radial passage 14 and extends substantially the entire circumference of the rotor and has its outlet 17 in communication with the interior of the stator so that the steam exhausting therefrom may find outlet through the exhaust pipe 12. p

In the passage 15 I provide any desired number of butterfly valves 18 operated by weighted governor arms 19 on the outside of the rotor and connected by coiled springs 20 with the rotor, the springs tending to maintain the valves in their closed position. It will be noted, however, that the valves do not entirely close the passage, but leave a sufficient space for the passage of steam, so that while the maximum of resistance is offered to the passage of the steam in starting, as the speed of rotation increases the governor arms 19 swing outwardly and turn the butterfly valves so as to offer less resistance to the passage of steam, and hence automatically control said passage.

A steam gage 21 may be provided on the stator to indicate the pressure of steam therein and I may utilize any approved form of packing or stufling boxes, such as shown at 22, to render the stator steamtight.

In operation, the steam entering the chamber 10 is directed into the axial inlet 13, thence through the radial passage 14 and thencethrough the circumferential passage 15, and in its movement through the latter the conical blades and said blades are so positioned as to form annular abutments, so that the kinetic energy of the steam is utilized to the maximum degree and is compelled to travel throughout substantially the entire circumference of the rotor and thereby economically drive the same. To prevent the bearing of the rotor from becoming overheated it is provided With a vacuum space V.

Variousslight changes might be made in the'general form and arrangement of parts described Without departing from the invention, and hence I do not limit myself to the precise details set forth, but consider myself at liberty to make such changes and alterations as fairly fall Within the spirit and scope of the appended claims.

I claim: 7

1. A turbine, comprising a stator, a rotor in the stator having a circumferential pas sage discharging into the stator and having an axial inlet passage and a radial passage connecting the axial inlet with the inlet end of the circumferent al passage, abutments 1n the circumferential passage, valves in the circumferential passage adapted when in closed position to but partially close the passage, and governor arms connected to said valves and operated by the rotary motion of the rotor.

2. A turbine, comprising a stator, a rotor in the stator having a circumferential passage discharging into the stator and having an axial inlet passage and. a radial passage connecting the axial inlet with the inlet end of the circumferential passage, abutments in the circumferential passage, said circumferential passage having valve controlled passages therein, butterfly valves in said last-mentioned passages of less diameter than the diameter of the passages, and governor arms controlling said valves.

FREDERICK ERNEST KUBE. 

